Lowest temperature in Shanghai on July 19?

Platform comparison

Market context

Shanghai experiences pronounced summer heat during July, with daily minimum temperatures typically ranging between 24°C and 28°C at Pudong International Airport, the official measurement station. The lowest temperature on any given day in mid-July reflects the interplay of nocturnal cooling, humidity levels, and any passing weather systems. July 19th falls within the city's peak summer period, when sustained high pressure and tropical moisture dominate the regional pattern.

Historical records from the Shanghai Meteorological Bureau show that July daily minima rarely fall below 22°C in the modern climate record, with most years recording lows between 25°C and 27°C. Anomalously cool nights—those dropping to 20°C or lower—occur in fewer than 5% of cases and typically require an unseasonable cold front or tropical cyclone circulation to advect cooler air masses into the Yangtze River Delta region. The current crowd probability of 0% suggests traders are pricing in an expectation that the lowest temperature will remain within typical summer ranges rather than reaching exceptionally cool thresholds.

Monitoring the extended forecast from late June through mid-July 2026 will be essential, particularly tracking the position of the Western Pacific subtropical high-pressure system and any tropical cyclone activity in the Northwest Pacific. The China Meteorological Administration issues 10-day forecasts that typically become reliable 5–7 days before the target date. Any significant upper-level trough or organised low-pressure system moving through eastern China in the days preceding July 19th would be the primary catalyst for materially cooler overnight temperatures at Shanghai Pudong.

Methodology

This page tracks Lowest temperature in Shanghai on July 19? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.